Genetics 1 Principles Of Inheritance Flashcards
Genetics is the branch of biology which deals with
Inheritance of characters and variations
Define inheritance
Transfer of characters from one generation to another
Define variation
Degree of dissimilarities between parents and offsprings or members of same species
Father of genetics
Gregor J Mendel
Father of modern genetics
W Bateson
Who gave the term genetics
W Bateson
Father of experimental genetics
T H Morgan
TH Morgan did an experiment on ___
Drosophila (fruit fly)
TH Morgan gave the concepts of (6)
Crossing over Recombination Linkange Cross cross inheritance Sex linkange Linkage map of drosophila
Father of human genetics
A Garrod
___+___= genetics
Inheritance
Variations
Father of biochemical genetics
A Garrod
Father of human and biochemical genetics
A Garrod
A Garrod discovered _____ known as ____ or ____
First human metabolic genetic disaster
Alkaptonuria (black urine disease)
A Garrod gave the concept that
1 gene= I metabolic block
Variations that were naturally present in wild populations of plants and animals were selectivly bread (past of breed) and organisms which desirable characters produced. An example of this ?
Sahiwal cow in Punjab
Types of variations
Somatic variation
Germinal variation
What are somatic variations
Non inheritable variations like broken tail of mice
_____ variations are inheritable
Germinal variations
Germinal variation can be divided intine
Continuous and discontinuous variation
Continuous variation occurs due to ____
Crossing over
Discontinuous variation occurs due to
Mutations
Just read this :)
Discontinuous variation occurs randomly
Discontinuous variation can be divided into
Substantive
Meristic